An x-y active alignment system based on Risley beam steerers is described. The demonstrator features a quadrant detector which detects the misalignment error between the center of a spot of light and the center of the quadrant detector. This misalignment error is then used by a new algorithm to calculate the rotational displacement required for the two Risley beam steerers to steer the spot of light to the center of the quadrant detector. The experimental results indicate that any spot misaligned by up to 160 /spl mu/m on the quadrant detector will be systematically centered by the demonstrator system.
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机译：描述了一种基于Risley光束操纵器的x-y主动对准系统。该演示器具有一个象限检测器，可检测光斑中心与象限检测器中心之间的未对准误差。然后，新算法使用该未对准误差来计算两个Risley光束转向器将光点转向象限检测器中心所需的旋转位移。实验结果表明，在象限检测器上任何未对准高达160 / spl mu / m的光斑将被演示系统系统居中。
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